CN108168837A - Device and method for testing liquid flow resistance of sucker rod centralizer - Google Patents
Device and method for testing liquid flow resistance of sucker rod centralizer Download PDFInfo
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- CN108168837A CN108168837A CN201611118499.1A CN201611118499A CN108168837A CN 108168837 A CN108168837 A CN 108168837A CN 201611118499 A CN201611118499 A CN 201611118499A CN 108168837 A CN108168837 A CN 108168837A
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- 239000007788 liquid Substances 0.000 title claims abstract description 147
- 238000012360 testing method Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000011521 glass Substances 0.000 claims abstract description 108
- 230000008878 coupling Effects 0.000 claims abstract description 10
- 238000010168 coupling process Methods 0.000 claims abstract description 10
- 238000005859 coupling reaction Methods 0.000 claims abstract description 10
- 238000005086 pumping Methods 0.000 claims description 78
- 229920005479 Lucite® Polymers 0.000 claims description 22
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 22
- 238000002474 experimental method Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 7
- 230000001681 protective effect Effects 0.000 claims description 7
- 238000010079 rubber tapping Methods 0.000 claims description 5
- 230000001133 acceleration Effects 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 4
- 241000276425 Xiphophorus maculatus Species 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 70
- 239000012530 fluid Substances 0.000 description 16
- 238000004088 simulation Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 4
- 239000010779 crude oil Substances 0.000 description 3
- 238000001802 infusion Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 230000003019 stabilising effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M10/00—Hydrodynamic testing; Arrangements in or on ship-testing tanks or water tunnels
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a device and a method for testing liquid flow resistance of a sucker rod centralizer, and belongs to the field of oilfield tests. The device comprises a centrifugal pump and a driving motor which are connected through a coupling, wherein a liquid inlet and a liquid outlet of the centrifugal pump are respectively communicated with a circulating liquid pool through a lower horizontal pipeline and an upper horizontal pipeline; the electromagnetic flowmeter is arranged on the upper horizontal pipeline; the device comprises an organic glass vertical pipeline, a horizontal output pipeline and a vertical output pipeline which are sequentially communicated, wherein a liquid inlet of the organic glass vertical pipeline is communicated with the upper horizontal pipeline, a sucker rod centralizer can be installed in the organic glass vertical pipeline and is abutted against the upper end and the lower end of the organic glass vertical pipeline, and a liquid outlet of the vertical output pipeline is communicated with a circulating liquid pool; the first pressure gauge and the first ball valve are both arranged at a liquid inlet of the organic glass vertical pipeline; the second pressure gauge and the second ball valve are both arranged on the horizontal output pipeline. The device has simple structure and convenient operation, and can accurately test the liquid flow resistance of the sucker rod centralizer.
Description
Technical field
The present invention relates to oilfield test field, more particularly to a kind of oil pumping rod centering device liquid flowing resistance test device and side
Method.
Background technology
In oil exploitation engineering field, since different crude oils production fluid physical properties of fluids difference is big, pumpingh well downhole tool
Type it is various, cause motion state of the sucker rod in oil pumping well shaft complicated, therefore the sucker rod stabilizing installed on sucker rod
Device has seriously affected the stress of rod string in the wellbore, especially because the liquid flowing resistance situation that structure difference is born is complicated
In high viscosity fluid, the risk of rod string eccentric wear is further increased, shortens pump detection period.It is therefore desirable to difference
The liquid flowing resistance that type oil pumping rod centering device is born in different fluid property carries out research and analysis, in order to preferred sucker rod
The type of centralizer and the structure of Optimal improvements oil pumping rod centering device are effectively improved the stress shape of centering sucker rod in the wellbore
Condition, and then extend pump detection period.
As the relevant technologies, the prior art provides a kind of can simulate and former in the oil pumping well shaft of test different types
The device of the flow resistance of oily production fluid, the device include：Material container (cycle liquid pool), for the heating of heated material container
Component, for test fluid in pressurized delivered material container infusion pump (centrifugal pump) and be arranged in parallel straight line pattern simulation
Pipeline, spiral pattern simulation pipeline and variable corner type formula simulation pipeline, above-mentioned three kinds of simulation pipelines one end is pumped out with infusion
The connection of mouth end, the other end are connected by reflux line with material container, and the inlet end and an outlet end of three kinds of simulation pipelines is set respectively
There are a control valve, inlet pressure sensor and outlet pressure sensor, reflux line is equipped with a fluid flowmeter, wherein, add
Thermal part, three inlet pressure sensors, three outlet pressure sensors and fluid flowmeter are electric with a data processing system
Connection.During experiment, infusion pump pressurized delivered test fluid, through control valve, inlet pressure sensor, any simulation pipeline, outlet
Pressure sensor, control valve and fluid flowmeter flow back into material container, complete cyclic test.Data processing system acquire into
The test parameters such as mouth pressure, outlet pressure, flow, test temperature, show and output test result.
Inventor has found that the prior art has at least the following problems：
The device that the prior art provides can only in simulation test pit shaft original production fluid liquid flowing resistance, it is impossible to simulation and survey
Liquid flowing resistance in well testing cylinder suffered by oil pumping rod centering device.
Invention content
Technical problem to be solved of the embodiment of the present invention is that oil pumping in oil pumping well shaft can be measured by providing one kind
The device and method of liquid flowing resistance suffered by bar centralizer.Specific technical solution is as follows：
In a first aspect, an embodiment of the present invention provides a kind of oil pumping rod centering device liquid flowing resistance test device, including centrifugation
Pump and the cycle liquid pool connected by lower horizontal pipeline with the inlet of the centrifugal pump, described device further include：Driving electricity
Machine is connect by shaft coupling with the centrifugal pump；Upper horizontal pipeline, inlet are connected with the liquid outlet of the centrifugal pump, go out liquid
Mouth is connected with the cycle liquid pool；Electromagnetic flowmeter is arranged on the upper horizontal pipeline；The organic glass sequentially connected is vertical
Pipeline, horizontal output pipeline, vertical export pipeline, the inlet of the organic glass vertical pipeline connect with the upper horizontal pipeline
Logical, the liquid outlet of the vertical export pipeline is connected with the cycle liquid pool；First pressure gauge and the first ball valve, are arranged at institute
At the inlet for stating organic glass vertical pipeline；Second pressure gauge and the second ball valve are arranged on the horizontal output pipeline；
Oil pumping rod centering device is fixed in the organic glass vertical pipeline, and with the top and bottom of the organic glass vertical pipeline
It offsets.
Specifically, preferably, described device further includes coupler protective casing, the coupler protective casing is arranged on described
On shaft coupling.
Specifically, preferably, the upper horizontal pipeline include sequentially connect the first elbow, first level linkage section,
Second elbow, the second horizontal connection section, third elbow, output elbow section；The liquid outlet of first elbow and the centrifugal pump
Connection, the electromagnetic flowmeter are arranged in the second horizontal connection section, and the output elbow section connects with the cycle liquid pool
It is logical；The middle part of the second horizontal connection section is also connected by the vertical component effect of threeway with the organic glass vertical pipeline.
Specifically, preferably, described device further includes third ball valve and the 4th ball valve, the third ball valve is arranged on institute
It states on first level linkage section, the 4th ball valve is arranged on second level between the threeway and the third elbow
On linkage section.
Specifically, preferably, the organic glass vertical pipeline includes the lucite tube sequentially connected from bottom to top
Lower contact, organic glass vertical section, lucite tube top connection；Described device further includes horizontal liquid input section, the horizontal feed liquor
Section is connected with the vertical component effect of the threeway and the lucite tube lower contact, and described first is provided on the horizontal liquid input section
Pressure gauge and first ball valve.
Specifically, preferably, the horizontal liquid input section and the lucite tube lower contact and the organic glass
It is flanged joint between vertical section and the lucite tube lower contact and the lucite tube top connection.
Specifically, preferably, described device further includes the 5th ball valve being arranged on the lower horizontal pipeline, Yi Jishe
Put the tapping valve in the exit of the cycle liquid pool.
Specifically, preferably, described device further includes the test bracket for the platy structure that is square, on the test bracket
Multiple threaded holes are provided with, are fixed on the driving motor, the centrifugal pump and the cycle liquid pool by bolt assembly
On the test bracket.
Specifically, preferably, described device further includes fixed fixed frame vertical with the test bracket, the fixation
Frame is square mount structure, is provided with that multiple both ends are vertical with the left and right ends of the fixed frame to be connected along the fixed frame short transverse
The strip transverse slat connect；Each strip transverse slat is located at setting in the plate face of the organic glass vertical section both sides, and there are two symmetrical
Through-hole；After being mounted in the organic glass vertical section using hoop sleeve, both ends carry out after being each passed through two through-holes again
It is fixedly connected, the organic glass vertical section is fixed with the fixed frame.
Second aspect, the embodiment of the present invention are additionally provided using above device test oil pumping rod centering device in oil pumping well shaft
The method of interior suffered liquid flowing resistance, the method includes：
Step a, oil pumping rod centering device is fixed in organic glass vertical pipeline, and upper with organic glass vertical pipeline
End and lower end offset, and open the first ball valve and the second ball valve, open driving motor, and liquid enters centrifugal pump by cycle liquid pool, and
Full of upper horizontal pipeline, the organic glass vertical pipeline, turning for the driving motor is adjusted according to the reading of electromagnetic flowmeter
Speed makes the flow of the liquid entered in the upper horizontal pipeline reach requirement of experiment.
Step b, first pressure gauge and the difference of second pressure meter reading are obtained, and obtains the length of the oil pumping rod centering device
Degree, cross-sectional area, the inner circle area of the organic glass vertical pipeline, the liquid density, then according to it is following calculate it is public
Formula obtains the liquid flowing resistance suffered by the oil pumping rod centering device：
FO=(Pt-ρgh)×(At-Af)
Wherein, FoFor the liquid flowing resistance suffered by the oil pumping rod centering device, unit N；PtFor the first pressure gauge and institute
State the pressure difference of second pressure gauge, unit Pa；Density of the ρ for liquid, unit kg/m3；H is the oil pumping rod centering device
Length, unit m；G is acceleration of gravity, unit m/s2；AtFor the inner circle area of the organic glass vertical pipeline, unit
For m2；AfFor the cross-sectional area of the oil pumping rod centering device, unit m2。
The advantageous effect that technical solution provided in an embodiment of the present invention is brought is：
Oil pumping rod centering device liquid flowing resistance test device provided in an embodiment of the present invention, by setting organic glass VERTICAL TUBE
Line and oil pumping rod centering device is installed in organic glass vertical pipeline, simulation oil pumping rod centering device in oil pumping well shaft by
Liquid flowing resistance.By the way that organic glass vertical pipeline and horizontal output pipeline are set as dismountable mode of communicating, convenient for inciting somebody to action
Different structure or the oil pumping rod centering device of model are placed in organic glass vertical pipeline.By the upper horizontal pipeline of setting, it is convenient for
Entered in organic glass vertical pipeline to the liquid stabilising exported by centrifugal pump, the circulatory system is formed convenient for entire circuit.Pass through
First pressure gauge and second pressure gauge are set, the organic glass vertical pipeline of oil pumping rod centering device is internally provided with convenient for acquisition
Pressure difference, after the fluid column pressure difference in organic glass vertical pipeline is subtracted, to obtain the liquid flowing resistance of oil pumping rod centering device.By setting
The first ball valve and the second ball valve are put, can enter organic glass vertical pipeline or by organic glass vertical pipeline convenient for control liquid
Output.As it can be seen that device provided in an embodiment of the present invention can accurately test what oil pumping rod centering device was received in oil pumping well shaft
Liquid flowing resistance, which is simple and convenient to operate, can large-scale promotion use.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present invention, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1-1 is the front view of oil pumping rod centering device liquid flowing resistance test device provided in an embodiment of the present invention；
Fig. 1-2 is the left view of oil pumping rod centering device liquid flowing resistance test device provided in an embodiment of the present invention；
Fig. 1-3 is the vertical view of oil pumping rod centering device liquid flowing resistance test device provided in an embodiment of the present invention.
Wherein, reference numeral represents respectively：
1 centrifugal pump,
2 times horizontal pipelines,
3 cycle liquid pools,
4 driving motors,
5 shaft couplings,
Horizontal pipeline on 6,
601 first elbows,
602 first level linkage sections,
603 second elbows,
604 second horizontal connection sections,
605 third elbows,
606 output elbow sections,
7 electromagnetic flowmeters,
8 organic glass vertical pipelines,
801 lucite tube lower contacts,
802 organic glass vertical sections,
803 lucite tube top connections,
9 horizontal output pipelines,
10 vertical export pipelines,
11 first pressure gauges,
12 first ball valves,
13 second pressure gauges,
14 second ball valves,
15 oil pumping rod centering devices,
16 coupler protective casings,
17 third ball valves,
18 the 4th ball valves,
19 horizontal liquid input sections,
20 the 5th ball valves,
21 tapping valves,
22 test brackets,
23 fixed frames.
Specific embodiment
Unless otherwise defined, all technical terms used in the embodiment of the present invention are respectively provided with usual with those skilled in the art
The identical meaning understood.To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to this hair
Bright embodiment is described in further detail.
In a first aspect, an embodiment of the present invention provides a kind of oil pumping rod centering device liquid flowing resistance test device, such as attached drawing 1-
1st, shown in attached drawing 1-2 and attached drawing 1-3, which includes centrifugal pump 1 and by lower horizontal pipeline 2 and the feed liquor of centrifugal pump 1
The cycle liquid pool 3 of mouth connection, the device further include：Driving motor 4, upper horizontal pipeline 6, electromagnetic flowmeter 7, first pressure gauge
11st, the first ball valve 12, second pressure gauge 13, the second ball valve 14, wherein, driving motor 4 is connect by shaft coupling 5 with centrifugal pump 1；
The inlet of upper horizontal pipeline 6 is connected with the liquid outlet of centrifugal pump 1, and liquid outlet is connected with cycle liquid pool 3；Electromagnetic flowmeter 7 is set
It puts on upper horizontal pipeline 6；Organic glass vertical pipeline 8, horizontal output pipeline 9, the vertical export pipeline 10 sequentially connected, has
The inlet of machine glass vertical pipeline 8 is connected with upper horizontal pipeline 6, and liquid outlet and the cycle liquid pool 3 of vertical export pipeline 10 connect
It is logical；11 and first ball valve 12 of first pressure gauge is arranged at the inlet of organic glass vertical pipeline 8；13 He of second pressure gauge
Second ball valve 14 is arranged on horizontal output pipeline 9；Oil pumping rod centering device 15 is fixed in organic glass vertical pipeline 8, and
It offsets with the top and bottom of organic glass vertical pipeline 8.
The operation principle with regard to oil pumping rod centering device liquid flowing resistance test device provided in an embodiment of the present invention, which is given, below retouches
It states：
Oil pumping rod centering device 15 to be tested is fixed in organic glass vertical pipeline 8 first, and is connected corresponding
Pipeline opens the first ball valve 12 and the second ball valve 14, in dish pumping several weeks, the partially liq in cycle liquid pool 3 is made to enter centrifugal pump 1,
Then start driving motor 4, recycle liquid pool 3 in liquid gone successively in centrifugal pump 1 by lower horizontal pipeline 2, and liquid by
The liquid outlet of centrifugal pump 1 enters in upper horizontal pipeline 6, and partially liq recycles liquid pool 3 by the liquid outlet input of upper horizontal pipeline 6
In, another part liquid enters in organic glass vertical pipeline 8, at this point, the oil pumping rod centering device in organic glass vertical pipeline 8
15 are acted on by liquid flowing resistance.(it represents the liquid into upper horizontal pipeline 6 to reading on observation electromagnetic flowmeter 7
Flow), the rotating speed of driving motor 4 is adjusted, the flow of liquid is made to reach requirement of experiment.Then first pressure gauge 11 and second is observed
The reading of pressure gauge 13 when stable reading, records the reading of first pressure gauge 11 and second pressure gauge 13, and obtains the first pressure
The pressure difference that flowing liquid is crossed in power table 11 and the pressure difference of second pressure gauge 13, organic glass vertical pipeline 8 (can be by crossing flowing liquid
Density p, the product of height h and gravity acceleration g obtains), between organic glass vertical pipeline 8 and oil pumping rod centering device 15
Annular space area, then by obtaining the pressure difference of first pressure gauge 11 and second pressure gauge 13 and subtracting organic glass vertical pipeline
The 8 interior pressure differences for crossing flowing liquid, the annular space area being then multiplied by between organic glass vertical pipeline 8 and oil pumping rod centering device 15, just
It can obtain the liquid flowing resistance suffered by oil pumping rod centering device 15.
It should be noted that the liquid in cycle liquid pool 3 is the crude oil production fluid obtained in oil field, to improve the device
Measuring accuracy.The internal diameter of organic glass vertical pipeline 8 is 55-75mm, approaches with the internal diameter of practical oil pumping well shaft, is somebody's turn to do with improving
The measuring accuracy of device.Wherein, the pressure difference that flowing liquid is crossed in organic glass vertical pipeline 8 is liquid by organic glass vertical pipeline
8 lower end flow to the pressure difference of upper end, that is, flows through annular space between oil pumping rod centering device 15 and organic glass vertical pipeline 8
The pressure difference of liquid can cross the gravitational difference of flowing liquid by this to obtain.
Based on above-mentioned it is found that 15 liquid flowing resistance test device of oil pumping rod centering device provided in an embodiment of the present invention, by setting
It puts organic glass vertical pipeline 8 and oil pumping rod centering device 15 is fixed in organic glass vertical pipeline 8, simulation sucker rod is helped
The liquid flowing resistance that positive device 15 is received in oil pumping well shaft.By the way that organic glass vertical pipeline 8 and horizontal output pipeline 9 are set as
Dismountable mode of communicating, convenient for different structure or the oil pumping rod centering device of model 15 are placed on organic glass vertical pipeline 8
It is interior.By the upper horizontal pipeline 6 of setting, enter in organic glass vertical pipeline 8 convenient for the liquid stabilising that is exported by centrifugal pump 1,
The circulatory system is formed convenient for entire circuit.By setting first pressure gauge 11 and second pressure gauge 13, convenient for obtaining internal set
There is the pressure difference of the organic glass vertical pipeline 8 of oil pumping rod centering device 15, subtracting the fluid column pressure difference in organic glass vertical pipeline 8
Afterwards, to obtain the liquid flowing resistance of oil pumping rod centering device 15.By setting the first ball valve 12 and the second ball valve 14, convenient for controlling liquid
Organic glass vertical pipeline 8 can be entered or exported by organic glass vertical pipeline 8.As it can be seen that dress provided in an embodiment of the present invention
The liquid flowing resistance that oil pumping rod centering device 15 is received in oil pumping well shaft can accurately be tested by putting, and the apparatus structure is simple, operation
It conveniently, can large-scale promotion use.
Specifically, as shown in attached drawing 1-1, device provided in an embodiment of the present invention further includes coupler protective casing 16, the connection
Axis device protective cover 16 is arranged on shaft coupling 5, to protect the shaft coupling 5, prevents the substance splash such as liquid on the shaft coupling 5.
Specifically, in embodiments of the present invention, as illustrated in the accompanying drawings from 1 to 3, it is curved to include sequentially connect first for upper horizontal pipeline 6
First 601, first level linkage section 602, the second elbow 603, the second horizontal connection section 604, third elbow 605, output elbow section
606；First elbow 601 is connected with the liquid outlet of centrifugal pump 1, and electromagnetic flowmeter 7 is arranged in the second horizontal connection section 604, defeated
Go out elbow section 606 to connect with cycle liquid pool 3；The middle part of second horizontal connection section 604 also passes through the vertical component effect of threeway and organic glass
Glass vertical pipeline 8 connects.Horizontal pipeline 6 in such setting, convenient for upper horizontal pipeline 6 and centrifugal pump 1, organic glass vertical pipeline
8 and cycle liquid pool 3 connect, make central axes and the horizontal direction parallel of the second horizontal connection section 604 of horizontal pipeline 6, with
Vertical direction is in convenient for the central axes of organic glass vertical pipeline 8.Wherein, the central axes of first level linkage section 602 are edge
Anterior-posterior horizontal direction is set, and the central axes of the second linkage section 604 are to be set along left and right horizontal direction, first level linkage section 602
Central axes it is vertical with the central axes of the second horizontal connection section 604.Wherein, the inlet of the first elbow 601 and centrifugal pump 1 passes through
Flange and bolt assembly connection, nut of the bolt assembly for bolt commonly used in the art and with bolt matching, this will not be detailed here；
First elbow 601, first level linkage section 602, the second elbow 603, the second horizontal connection section 604, third elbow 605, output
It is welding or threaded connection between elbow section 606.
Specifically, as shown in attached drawing 1-1, attached drawing 1-2 and attached drawing 1-3, device provided in an embodiment of the present invention further includes
Three ball valves 17 and the 4th ball valve 18, third ball valve 17 are arranged on first level linkage section 602, and the 4th ball valve 18 is arranged on threeway
In the second horizontal connection section 604 between third elbow 605.What setting third ball valve 17 was exported convenient for control by centrifugal pump 1
Can liquid enter in upper horizontal pipeline 6 and organic glass vertical pipeline 8, and the 4th ball valve 18 of setting enters upper level convenient for control
Can the liquid in pipeline 6 enter in cycle liquid pool 3.Wherein, 17 and the 4th ball valve 18 of third ball valve passes through the company of screw thread respectively
It connects mode to connect with corresponding pipeline, the connection mode of screw thread is simple, easy to disassemble.
Specifically, in embodiments of the present invention, as shown in attached drawing 1-1, organic glass vertical pipeline 8 includes suitable from top to bottom
Lucite tube lower contact 801, organic glass vertical section 802, the lucite tube top connection 803 of secondary connection；Such as attached drawing 1-3 institutes
Show, device provided in an embodiment of the present invention further includes horizontal liquid input section 19, the vertical component effect of horizontal liquid input section 19 and threeway and organic
Glass tube lower contact 801 connects, and 11 and first ball valve 12 of first pressure gauge is provided on horizontal liquid input section 19.It is arranged such organic
Glass vertical pipeline 8 with horizontal liquid input section 19 and horizontal output pipeline 9 convenient for connecting, 803 He of setting lucite tube top connection
Lucite tube lower contact 801, convenient for the dismounting oil pumping rod centering device 15 in organic glass vertical section 802.Wherein, sucker rod is helped
Positive device 15 is located in organic glass vertical section 802, and upper end and the lucite tube top connection 803 of oil pumping rod centering device 15 offset,
Lower end offsets with lucite tube lower contact 801.Horizontal liquid input section 19 is set to be convenient for the inlet in organic glass vertical pipeline 8
Place's setting 11 and first ball valve 12 of first pressure gauge.Wherein, horizontal liquid input section 19 and lucite tube lower contact 801, Yi Jiyou
It is flanged joint between machine glass vertical section 802 and lucite tube lower contact 801 and lucite tube top connection 803, i.e.,
Connected by flange and the bolt assembly mating with flange, above-mentioned connection mode be arranged such, convenient for two parts for being connected it
Between dismount.
Specifically, as shown in attached drawing 1-1 and attached drawing 1-3, device provided in an embodiment of the present invention, which further includes, is arranged on lower water
The 5th ball valve 20 on flat pipeline 2 and be arranged on cycle liquid pool 3 exit tapping valve 21.5th ball valve 20 is set just
Can the liquid in control loop liquid pool 3 enter centrifugal pump 1, and setting tapping valve 21 is convenient for controlling whether to recycle in liquid pool 3
Liquid discharge, can avoid cycle liquid pool 3 in liquid excessively overflow.
Specifically, as shown in attached drawing 1-1, attached drawing 1-2 and attached drawing 1-3, device provided in an embodiment of the present invention further includes
Be square the test bracket 22 of platy structure, and multiple threaded holes are provided on test bracket 22, and electricity will be driven by bolt assembly
Machine 4, centrifugal pump 1 and cycle liquid pool 3 are fixed on test bracket 22.The test bracket 22 of rectangle tabular structure easily obtains
It takes, test bracket 22 and driving motor 4, centrifugal pump 1 and the fixed form for recycling liquid pool 3 is arranged such, it is easy to disassemble.Its
In, fixable threaded hole is both provided on driving motor 4, centrifugal pump 1, driving motor 4 is passed through, on centrifugal pump 1 by bolt
Threaded hole and test bracket 22 on threaded hole, and pass through nut check, can be by driving motor 4, centrifugal pump 1 and experiment branch
Frame 22 is fixed.Wherein, the lower section of cycle liquid pool 3 is provided with pedestal, and cycle liquid pool 3 is affixed with pedestal, and screw thread is provided on pedestal
Pedestal and test bracket 22 are fixed using bolt assembly in hole.Further, device provided in an embodiment of the present invention, which further includes, sets
The rolling assembly in 22 lower face of test bracket is put, in order to the movement of the device.
Specifically, as shown in attached drawing 1-1 and attached drawing 1-2, device provided in an embodiment of the present invention further includes and test bracket
22 vertical fixed fixed frames 23, fixed frame 23 are square mount structure, along 23 short transverse of fixed frame be provided with multiple both ends with
The left and right ends strip transverse slat connected vertically of fixed frame 23, each strip transverse slat are located at 802 both sides of organic glass vertical section
There are two symmetrical through-holes for setting in plate face, and after being mounted in organic glass vertical section 802 using hoop sleeve, both ends are each passed through again
It is fixedly connected after two through-holes, organic glass vertical section 802 and fixed frame 23 is fixed.Setting fixed frame 23 is convenient for have
Machine glass vertical section 802 firmly fixes, and the position for avoiding organic glass vertical section 802 shifts.Wherein, each clip
Across one group of symmetrical through-hole on each strip transverse slat, then clip is fixed by the bolt assembly on clip, will be had
Machine glass vertical section 802 is fixed on fixed frame 23.
Second aspect, the embodiment of the present invention is additionally provided tests oil pumping rod centering device 15 in pumpingh well well using above device
The method of suffered liquid flowing resistance, this method include the following steps in cylinder：
Oil pumping rod centering device 15 is fixed in organic glass vertical pipeline 8 by step 101, and with organic glass VERTICAL TUBE
The top and bottom of line 8 offset, and open the first ball valve 12 and the second ball valve 14, open driving motor 4, liquid is by cycle liquid pool 3
Into centrifugal pump 1, and full of upper horizontal pipeline 6, organic glass vertical pipeline 8, adjusted and driven according to the reading of electromagnetic flowmeter 7
The rotating speed of motor 4 makes the flow of the liquid entered in upper horizontal pipeline 6 reach requirement of experiment；
Step 102, the difference for obtaining 13 reading of first pressure gauge 11 and second pressure gauge, and obtain oil pumping rod centering device 15
Length, cross-sectional area, the inner circle area of organic glass vertical pipeline 8, liquid density, according to following calculation formula obtain take out
Liquid flowing resistance suffered by beam centralizer 15：
FO=(Pt-ρgh)×(At-Af)
Wherein, FoFor the liquid flowing resistance suffered by oil pumping rod centering device 16, unit N；PtIt is pressed for first pressure gauge 11 and second
The pressure difference of power table 13, unit Pa；Density of the ρ for liquid, unit kg/m3；H is the length of oil pumping rod centering device 16, single
Position is m；G is acceleration of gravity, unit m/s2；AtFor the inner circle area of organic glass vertical pipeline 8, unit m2；AfTo take out
The cross-sectional area of beam centralizer 16, unit m2。
The method of the test is simple, and can accurately obtain the liquid stream resistance suffered in oil pipe of oil pumping rod centering device 15
Power selects the oil pumping rod centering device 15 of respective numbers and structure to be applied in petroleum production engineering, to extend oil well pump convenient for the later stage
Time between overhauls(TBO).
Specifically, in a step 101, oil pumping rod centering device 15 can be helped for blade centralizer commonly used in the art, annulus
Positive device, spiral centering device etc..Wherein, oil pumping rod centering device 15 is fixed on roofbolt, the upper and lower ends of roofbolt respectively with organic glass
Glass pipe lower contact 801 and lucite tube top connection 803 offset so that the roofbolt with oil pumping rod centering device 15 be fixed on it is organic
In glass vertical section 802.Before driving motor 4 is opened, first dish pumping is needed, to ensure that centrifugal pump 1 being capable of normal operation.It is opening
After opening driving motor 4, turning for driving motor 4 is adjusted according to the reading of electromagnetic flowmeter 7 for first ball valve 12, the second ball valve 14
Speed makes the reading of electromagnetic flowmeter 7 reach requirement of experiment, with ensure enter upper horizontal pipeline 6 in and organic glass vertical section 802
Fluid flow it is close with the flow of crude oil production fluid in pumpingh well, in order to accurately measure suffered by oil pumping rod centering device 15
Liquid flowing resistance.
Specifically, in a step 102, it when the stable reading in first pressure gauge 11 and second pressure gauge 13, reads simultaneously
Record three times, is then averaged, in order to reduce the error that the later stage obtains the liquid flowing resistance suffered by oil pumping rod centering device 15.Into
One step, obtain the length of oil pumping rod centering device 15, cross-sectional area, the inner circle area of organic glass vertical pipeline 8, liquid it is close
Degree, the liquid flowing resistance according to suffered by above-mentioned calculation formula obtains oil pumping rod centering device 15.15 institute of such acquisition oil pumping rod centering device
The mode for the liquid flowing resistance received is simple, and accuracy is high, convenient for promoting the use of for devices and methods therefor provided in an embodiment of the present invention.
The foregoing is merely presently preferred embodiments of the present invention, the protection domain being not intended to limit the invention, all in this hair
Within bright spirit and principle, any modification, equivalent replacement, improvement and so on should be included in protection scope of the present invention
Within.
Claims (10)
1. a kind of oil pumping rod centering device liquid flowing resistance test device, including centrifugal pump (1) and by lower horizontal pipeline (2) with
The cycle liquid pool (3) of the inlet connection of the centrifugal pump (1), which is characterized in that described device further includes：Driving motor (4),
It is connect by shaft coupling (5) with the centrifugal pump (1)；
Upper horizontal pipeline (6), inlet are connected with the liquid outlet of the centrifugal pump (1), and liquid outlet connects with the cycle liquid pool (3)
It is logical；
Electromagnetic flowmeter (7) is arranged on the upper horizontal pipeline (6)；
Organic glass vertical pipeline (8), horizontal output pipeline (9), the vertical export pipeline (10) sequentially connected, organic glass
The inlet of glass vertical pipeline (8) is connected with the upper horizontal pipeline (6), the liquid outlet of the vertical export pipeline (10) and institute
Cycle liquid pool (3) is stated to connect；
First pressure gauge (11) and the first ball valve (12) are arranged at the inlet of the organic glass vertical pipeline (8)；
Second pressure gauge (13) and the second ball valve (14) are arranged on the horizontal output pipeline (9)；
Oil pumping rod centering device (15) is fixed in the organic glass vertical pipeline (8), and with the organic glass vertical pipeline
(8) top and bottom offset.
2. the apparatus according to claim 1, which is characterized in that described device further includes coupler protective casing (16), described
Coupler protective casing (16) is arranged on the shaft coupling (5).
3. the apparatus according to claim 1, which is characterized in that the upper horizontal pipeline (6) including sequentially connect first
Elbow (601), first level linkage section (602), the second elbow (603), the second horizontal connection section (604), third elbow
(605), output elbow section (606)；
First elbow (601) connects with the liquid outlet of the centrifugal pump (1), and the electromagnetic flowmeter (7) is arranged on described
In second horizontal connection section (604), the output elbow section (606) connects with the cycle liquid pool (3)；
The middle part of the second horizontal connection section (604) also passes through the vertical component effect of threeway and the organic glass vertical pipeline (8)
Connection.
4. device according to claim 3, which is characterized in that described device further includes third ball valve (17) and the 4th ball valve
(18), the third ball valve (17) is arranged on the first level linkage section (602), and the 4th ball valve (18) is arranged on institute
It states on the second horizontal connection section (604) between threeway and the third elbow (605).
5. device according to claim 3, which is characterized in that the organic glass vertical pipeline (8) is including from bottom to top
Lucite tube lower contact (801), organic glass vertical section (802), the lucite tube top connection (803) sequentially connected；
Described device further includes horizontal liquid input section (19), the vertical component effect of the horizontal liquid input section (19) and the threeway and described has
Machine glass tube lower contact (801) connects, and the first pressure gauge (11) and described the are provided on the horizontal liquid input section (19)
One ball valve (12).
6. device according to claim 5, which is characterized in that under the horizontal liquid input section (19) and the lucite tube
Connector (801) and the organic glass vertical section (802) and the lucite tube lower contact (801) and organic glass
It is flanged joint between glass pipe top connection (803).
7. the apparatus according to claim 1, which is characterized in that described device, which further includes, is arranged on the lower horizontal pipeline
(2) the 5th ball valve (20) on and be arranged on the cycle liquid pool (3) exit tapping valve (21).
8. device according to claim 5, which is characterized in that described device further includes the experiment branch for the platy structure that is square
Frame (22) is provided with multiple threaded holes on the test bracket (22), by bolt assembly by the driving motor (4), described
Centrifugal pump (1) and the cycle liquid pool (3) are fixed on the test bracket (22).
9. device according to claim 8, which is characterized in that described device further includes vertical with the test bracket (22)
Fixed fixed frame (23), the fixed frame (23) are square mount structure, are provided with along the fixed frame (23) short transverse more
A both ends and the left and right ends strip transverse slat connected vertically of the fixed frame (23)；
Each strip transverse slat is located at setting in the plate face of organic glass vertical section (802) both sides, and there are two symmetrical logical
Hole；
After being mounted on the organic glass vertical section (802) using hoop sleeve, it is laggard that both ends are each passed through two through-holes again
Row is fixedly connected, and the organic glass vertical section (802) and the fixed frame (23) is fixed.
10. utilize claim 1-9 any one of them device to test oil pumping rod centering devices liquid suffered in oil pumping well shaft
The method of flow resistance power, which is characterized in that the method includes：
Step a, oil pumping rod centering device (15) is fixed in organic glass vertical pipeline (8), and vertical with the organic glass
The top and bottom of pipeline (8) offset, and open the first ball valve (12) and the second ball valve (14), unlatching driving motor (4), liquid by
Liquid pool (3) is recycled into centrifugal pump (1), and full of upper horizontal pipeline (6), the organic glass vertical pipeline (8), according to electromagnetism
The reading of flowmeter (7) adjusts the rotating speed of the driving motor (4), makes to enter the liquid in the upper horizontal pipeline (6)
Flow reach requirement of experiment；
Step b, the difference of first pressure gauge (11) and second pressure (13) meter reading is obtained, and obtains the oil pumping rod centering device
(15) length, cross-sectional area, the inner circle area of the organic glass vertical pipeline (8), the liquid density, then basis
Following calculation formula obtains the liquid flowing resistance suffered by the oil pumping rod centering device (15)：
FO=(Pt-ρgh)×(At-Af)
Wherein, FoFor the liquid flowing resistance suffered by the oil pumping rod centering device (15), unit N；PtFor the first pressure gauge (11)
With the pressure difference of the second pressure gauge (13), unit Pa；Density of the ρ for liquid, unit kg/m3；H is the sucker rod
The length of centralizer (15), unit m；G is acceleration of gravity, unit m/s2；AtFor the organic glass vertical pipeline (8)
Inner circle area, unit m2；AfFor the cross-sectional area of the oil pumping rod centering device (15), unit m2。
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Cited By (1)
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|---|---|---|---|---|
| CN112129501A (en) * | 2020-08-28 | 2020-12-25 | 中国石油天然气股份有限公司 | Device and method for predicting service life of sucker rod centralizer |
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